I'm here at TechEd, and we just announced that Visual Studio "Orcas" is now officially Visual Studio 2008.
Also, we announced a new product that is being called the Visual Studio Shell that will be released with Visual Studio 2008. There are 2 different "flavors" of the shell, integrated and isolated.
We will be making versions of the Visual Studio Shell available to VSIP partners when Visual Studio 2008 Beta 2 ships later this summer. It will be freely available on the web when Visual Studio 2008 is released.
Stay tuned for more information on the Visual Studio Shell and getting started with it over the coming months.